Finding the Third Proportional to 3,733,281 and 7,978,320

Step by Step Solution

1. Step 1: Write the proportion equation
   3,733,281 : 7,978,320 = 7,978,320 : x
2. Step 2: Convert to fraction form
   3,733,281/7,978,320 = 7,978,320/x
3. Step 3: Cross multiply
   3,733,281x = 7,978,320 × 7,978,320
4. Step 4: Simplify right side
   3,733,281x = 63,653,590,022,400
5. Step 5: Solve for x
   x = 63,653,590,022,400/3,733,281
6. Step 6: Final answer
   x = 17,050,307.76